<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <title>Remove a semaphore</title>
<link media="all" rel="stylesheet" type="text/css" href="styles/03e73060321a0a848018724a6c83de7f-theme-base.css" />
<link media="all" rel="stylesheet" type="text/css" href="styles/03e73060321a0a848018724a6c83de7f-theme-medium.css" />

 </head>
 <body class="docs"><div class="navbar navbar-fixed-top">
  <div class="navbar-inner clearfix">
    <ul class="nav" style="width: 100%">
      <li style="float: left;"><a href="function.sem-release.html">« sem_release</a></li>
      <li style="float: right;"><a href="function.shm-attach.html">shm_attach »</a></li>
    </ul>
  </div>
</div>
<div id="breadcrumbs" class="clearfix">
  <ul class="breadcrumbs-container">
    <li><a href="index.html">PHP Manual</a></li>
    <li><a href="ref.sem.html">Semaphore 函数</a></li>
    <li>Remove a semaphore</li>
  </ul>
</div>
<div id="layout">
  <div id="layout-content"><div id="function.sem-remove" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">sem_remove</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.1.0, PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">sem_remove</span> &mdash; <span class="dc-title">Remove a semaphore</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.sem-remove-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>sem_remove</strong></span>(<span class="methodparam"><span class="type"><a href="class.sysvsemaphore.html" class="type SysvSemaphore">SysvSemaphore</a></span> <code class="parameter">$semaphore</code></span>): <span class="type">bool</span></div>

  <p class="para rdfs-comment">
   <span class="function"><strong>sem_remove()</strong></span> removes the given semaphore.
  </p>
  <p class="para">
   After removing the semaphore, it is no longer accessible.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.sem-remove-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    
     <dt>
<code class="parameter">semaphore</code></dt>

     <dd>

      <p class="para">
       A semaphore as returned
       by <span class="function"><a href="function.sem-get.html" class="function">sem_get()</a></span>.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.sem-remove-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code>true</code></strong>， 或者在失败时返回 <strong><code>false</code></strong>。
  </p>
 </div>


 <div class="refsect1 changelog" id="refsect1-function.sem-remove-changelog">
  <h3 class="title">更新日志</h3>
  <p class="para">
   <table class="doctable informaltable">
    
     <thead>
      <tr>
       <th>版本</th>
       <th>说明</th>
      </tr>

     </thead>

     <tbody class="tbody">
      <tr>
       <td>8.0.0</td>
       <td>
        <code class="parameter">semaphore</code> expects a <span class="classname"><a href="class.sysvsemaphore.html" class="classname">SysvSemaphore</a></span>
        instance now; previously, a <span class="type">resource</span> was expected.
       </td>
      </tr>

     </tbody>
    
   </table>

  </p>
 </div>

 
 <div class="refsect1 seealso" id="refsect1-function.sem-remove-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.sem-get.html" class="function" rel="rdfs-seeAlso">sem_get()</a> - Get a semaphore id</span></li>
    <li class="member"><span class="function"><a href="function.sem-release.html" class="function" rel="rdfs-seeAlso">sem_release()</a> - Release a semaphore</span></li>
    <li class="member"><span class="function"><a href="function.sem-acquire.html" class="function" rel="rdfs-seeAlso">sem_acquire()</a> - Acquire a semaphore</span></li>
   </ul>
  </p>
 </div>
  

</div></div></div></body></html>